Gas heating-furnace.



Patented `myI s1, |900,

D. A. EBINGEH.

GAS HEATING FURNACE.

(Appupaem med Apr. d, 1599,)

(No Model.)

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DAVID A. EBINGER, OF COLUMBUS, OHIO, ASSIGN OR TO THE VOGL'GESANGFURNACE. COMPANY, OF SAME PLACE.

GAS HgA-riNc-FURNACE.

SPEQIEIATION forming part of Letters Patent No. 654,718, dated July. 31,1900.

Application filed April 6,1899. Serial No 711,969. No model.)

T0 all whom, it may] concern: l r

Be it known that I, DAVID A. EBINGER, a citizen of the United States,residing at Columbus, in the county of `Franklin andState of Ohio, haveinvented a new and useful Iniprovementin Gas Heating-Furnaces, of whichthe following is a specification. y l

My invention relates to a class of furnaces for use in heating publicand private buildings, and is specially constructed for the use ofeither natural or artificial gas as fuel, and is so designed that theheated air within the furnace proper is conducted through a series ofcylindrical rings or drums, having diaphragms for deflecting the heatand causing the draft to follow the complete circuit of each drum beforedischarging into' the next drum of the series.

In the accompanying drawings, Figure 1 represents an elevation of thefurnace proper with a portion of the outer wall broken away to show theburner. Fig. 2 'represents the furnace with a surrounding jacket (aportion of which is broken away) for collecting the warm air andconveying it through the various conduits connected therewith.A Fig. 3represents a plan view of the intermediate circular drum In Fig. 4 is aplan view of the circular bottom drum or combustion-chamber a. Fig. 5 isa sectional plan View of Fig. 2 on line showing the upper drnm'csurrounded by the jacket d. l

Similar letters refer to similar parts throughout the several views.

The combustion-drum t is constructed in the circular form, as 'shown inFigs. l and 4, with inner and outer walls f and g, made of sheet metalor any otherdes'irable substance, either cast or rolled, but preferablyof sheetiron. The bottom and top of the walls fand g are connected toeach other and closed by a ring of sheet metal, same as the wallsthemselves, forming the entire drum into a closed double-.walledcylinder, with the inner space or core eleft open.. Near the'bottom ofthe drum e is a circular plate h, fitting closely between the walls fandg throughout the entire circumferencefsaid plate h, being supported bywrought-iron brackets or other suitable means to the walls f and g andhaving air-holes perforated throughout its entire surface for thedistribution of air-tothe circular burner j, resting thereon. Theperforations of the plate h are not intended uto be made beneath thesurface of the burnerj, but only on each side'of it, between it and thewalls f and g. Beneath"thelperfoiated plate z, are four or more tubes k,connecting the outer wall g of the drum a to the surrounding jacket dfor the purpose of conducting air into the drum a beneath the plate 7Lfor'supporting combustion;` The object of the perforations in the plateh is to distribute the air taken in through the ducts 7c throughout theentire circumference of the burner j.

The heat and products of combustion generated in the drum a, areconducted through the short connecting-nue Z into the drum l), which isconstructed with inner and outer wallsf and g', closed inthe same manneras drum a, but of less vertical height. As the heat is discharged intothe drum b it is compelled, by the diaphragm m, to follow the directionof the arrows shown in Fig. 3 around the entire circumference of thedrum 1J to the discharge-flue a, which-,communicates with the drum c,which is constructed in the same manner as drum I), having the diaphragm0 for deiectingthe current inthe direction of arrows shown in Fig. 5around the entire circumference of this drum to the dischargeflue p forcommunicating with the smokestack. The drums b and c are held separatedfrom each other a short distance by the supports r for the purpose ofallowing the heated air generated within the inner space e to passthrough into the space between the drums and the surrounding jacket cl.-

The inverted conical defiector s is placed at the bottom of the innerspace e, as indicated in plans, and is intended Vto deflect the cold airwhich enters at the base of the furnace against the inner wall of thedrums a, b, and c. The defiector t at the top is for the purpose ofpreventing too rapid a circulation of the cool air through the centerspace e and stands away from thewall fsufciently to allow of a limitedcirculation aroundit, at the same time confining the air withinthespacelong enough to become thoroughly heated. A space is also left betweenthe deiector s and the wall f for allowing the cold air to pass IOO 'leI v Y 654,718

l up, butk indoing softobe forced `against'tqhe heated surface of thedrum. n

Thejacket d, surrounding the furnace, may

be set up from the door, as indicated, sni'- ciently to admit cool air,to the furnace, or, if

desired, it may be carried down to thefloor ,and a cool or fresh airduct connected to it and carried to the outside of the buildingfor thlpurpose of conveying fresh a'ir from without.

A door u is placed in the outer drumd,.with a collar connecting it tothe wall g of thein-` ner drum, for the purpose of lighting the gaswithin. .The top of the drumd is constructedwith an inverted conicaltop, as indicated by dotted lines in Fig. 2, for the purpose ofdeflecting the heated air into the various ducts, which may belconnectedat or near the top, as desired, and in any necessary position.

The outer or, surrounding jacket d may be constructed of brick or sheetmetal or any desirable material, but preferably of sheet-iron.

Theburner jneed Vnot be of any special i typeisolongas itisaconstructed-circularin form 'and having perforations both on theinner androuter sides in such position as-to throw the llameV againstthe walls fand g. The connection ofthe burner to the supply-pipe forfurnishing fuel may be made in any ordinary method'forfurnishingsuchfuel- As herein described, and illustrated in the accompanying drawings,I claimV as my invention the followingpoints, to wit:

Ina gas heating-furnace, the combination ,iof an outer casing, a seriesof annular drums mounted one abovethe other and having communicationwith each other, diaphragms arranged in saiddrulns so as to form acontin- 4nous passage for the products-of combustion around in thedrumsrand through ,their connections with each other, a burner locatednearJthe bottom'and in the lower annular drum, air-inlets communicatingwith said lower drum and the outside, a perforated plate located belowtheburnenand cold-air deflectors located at the bottom 'and topof thefurnace in thecenter of the annular drums to allow the cold airftobelproperly supplied and held in the center of the drums to be heated.

DAVID A. -EBINGER Witnesses: Y

ALBERT STRITMATTER, C. H. WING.

